FAQ
Datanode servlets need information about the namenode to service the request
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Key: HDFS-1669
URL: https://issues.apache.org/jira/browse/HDFS-1669
Project: Hadoop HDFS
Issue Type: Sub-task
Components: data-node, name-node
Affects Versions: Federation Branch
Reporter: Suresh Srinivas
Assignee: Suresh Srinivas
Fix For: Federation Branch


Prior to federation datanode had only one namenode. In servlets hosted on datanode, a DFSClient was created to the only namenode to serve the request. However with federation datanode has multiple namenodes. When a request is redirected to a datanode, it does not know which namenode to use for servicing the request.

This results in TestHftpFileSystem failure.


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  • Suresh Srinivas (JIRA) at Mar 1, 2011 at 4:40 am
    [ https://issues.apache.org/jira/browse/HDFS-1669?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Suresh Srinivas resolved HDFS-1669.
    -----------------------------------

    Resolution: Fixed
    Hadoop Flags: [Reviewed]

    I committed the change.
    Federation: Datanode servlets need information about the namenode to service the request
    ----------------------------------------------------------------------------------------

    Key: HDFS-1669
    URL: https://issues.apache.org/jira/browse/HDFS-1669
    Project: Hadoop HDFS
    Issue Type: Sub-task
    Components: data-node, name-node
    Affects Versions: Federation Branch
    Reporter: Suresh Srinivas
    Assignee: Suresh Srinivas
    Fix For: Federation Branch

    Attachments: HDFS-1669.patch


    Prior to federation datanode had only one namenode. In servlets hosted on datanode, a DFSClient was created to the only namenode to serve the request. However with federation datanode has multiple namenodes. When a request is redirected to a datanode, it does not know which namenode to use for servicing the request.
    This results in TestHftpFileSystem failure.
    --
    This message is automatically generated by JIRA.
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    For more information on JIRA, see: http://www.atlassian.com/software/jira

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